diff --git a/src/Dodge/Data/Item/Use/Consumption/Ammo.hs b/src/Dodge/Data/Item/Use/Consumption/Ammo.hs
index 431411fca..de15661ed 100644
--- a/src/Dodge/Data/Item/Use/Consumption/Ammo.hs
+++ b/src/Dodge/Data/Item/Use/Consumption/Ammo.hs
@@ -27,6 +27,9 @@ data ProjectileUpdate
     | PJRemoteDirection {_pjuStart :: Int, _pjuEnd :: Int, _pjuCID :: Int, _pjuITID :: Int}
     | PJSetScope {_pjuITID :: Int}
     | PJRetireRemote {_pjuITID :: Int, _pjuTimer :: Int, _pjuPJID :: Int}
+    | PJDecTimMvVel
+    | PJShellCollisionCheck
+    | PJRemoteShellCollisionCheck
     deriving (Show, Read, Eq, Ord)
 
 data AmmoType
diff --git a/src/Dodge/Data/Projectile.hs b/src/Dodge/Data/Projectile.hs
index 3c4e39302..3fd79a353 100644
--- a/src/Dodge/Data/Projectile.hs
+++ b/src/Dodge/Data/Projectile.hs
@@ -10,16 +10,7 @@ import Dodge.Data.Item.Use.Consumption.Ammo
 import Geometry.Data
 
 data Proj
-    = RemoteShell
-        { _prjPos :: Point2
-        , _prjStartPos :: Point2
-        , _prjVel :: Point2
-        , _prjDraw :: ProjectileDraw
-        , _prjID :: Int
-        , _prjPayload :: Payload
-        , _prjMITID :: Maybe Int
-        }
-    | Shell
+    = Shell
         { _prjPos :: Point2
         , _prjStartPos :: Point2
         , _prjVel :: Point2
diff --git a/src/Dodge/HeldUse.hs b/src/Dodge/HeldUse.hs
index 0d0ad02a1..78b2d5d51 100644
--- a/src/Dodge/HeldUse.hs
+++ b/src/Dodge/HeldUse.hs
@@ -458,7 +458,9 @@ fireRemoteShell it cr w =
         makeShell
             it
             cr
-            [ PJSetScope itid
+            [ PJRemoteShellCollisionCheck
+            , PJSetScope itid
+            , PJDecTimMvVel
             , PJThrust 330 0
             , PJRemoteDirection 340 0 cid itid
             ]
diff --git a/src/Dodge/Projectile/Create.hs b/src/Dodge/Projectile/Create.hs
index 592b62342..3ac889e88 100644
--- a/src/Dodge/Projectile/Create.hs
+++ b/src/Dodge/Projectile/Create.hs
@@ -5,6 +5,7 @@ import Dodge.Item.Location
 import Geometry
 import qualified IntMapHelp as IM
 import LensHelp
+import Data.Maybe
 
 createProjectile :: ProjectileCreate -> Item -> Creature -> World -> World
 createProjectile pt = case pt of
@@ -16,7 +17,9 @@ fireShell it cr =
     makeShell
         it
         cr
-        [ PJSpin 335 (_crID cr) spinamount
+        [ PJShellCollisionCheck
+        , PJDecTimMvVel
+        , PJSpin 335 (_crID cr) spinamount
         , PJThrust (350 - thrustdelay) 0
         , PJReduceSpin (1 - fromIntegral spindrag * 2 / 200)
         ]
@@ -44,7 +47,7 @@ makeShell it cr theupdate w =
                 , _prjPayload = _amPayload $ _laAmmoType am
                 , _prjTimer = 350
                 , _prjUpdates = theupdate
-                , _prjMITID = _itID it
+                , _prjMITID = Just . fromJust $ _itID it
                 }
   where
     i = IM.newKey $ _props (_cWorld w)
@@ -198,7 +201,9 @@ fireTrackingShell it cr w = addTrackRocket w'
         makeShell
             it
             cr
-            [ PJSpin 335 (_crID cr) spinamount
+            [ PJRemoteShellCollisionCheck
+            , PJDecTimMvVel
+            , PJSpin 335 (_crID cr) spinamount
             , PJTrack (350 - thrustdelay) 0 itid
             , PJThrust (350 - thrustdelay) 0
             , PJReduceSpin (1 - fromIntegral spindrag * 2 / 200)
diff --git a/src/Dodge/Projectile/Update.hs b/src/Dodge/Projectile/Update.hs
index 4b74bdfae..54cb0b95e 100644
--- a/src/Dodge/Projectile/Update.hs
+++ b/src/Dodge/Projectile/Update.hs
@@ -29,11 +29,31 @@ import qualified Streaming.Prelude as S
 
 updateProjectile :: Proj -> World -> World
 updateProjectile pj = case pj of
-    Shell{} -> updateShell pj . decTimMvVel pj . upsProjectile pj
-    RemoteShell{} -> updateRemoteShell pj . decTimMvVel pj . upsProjectile pj
+    Shell{} -> upsProjectile pj
 
-updateRemoteShell :: Proj -> World -> World
-updateRemoteShell pj w
+--explodeRemoteRocket' ::
+--    -- | Item id
+----    Maybe Int ->
+--    Proj ->
+--    World ->
+--    World
+--explodeRemoteRocket' thepj w =
+--    w
+--        & cWorld . projectiles . ix pjid . prjDraw .~ DrawBlankProjectile
+--        & usePayload (_prjPayload thepj) (_prjPos thepj)
+--        & updateitem
+--  where
+--    mitid = _prjMITID thepj
+--    updateitem = fromMaybe (cWorld . projectiles . at pjid .~ Nothing) $ do
+--        itid <- mitid
+--        itpos <- w ^? cWorld . itemLocations . ix itid
+--        return $
+--            (pointerToItemLocation itpos . itUse . heldUse .~ HeldDoNothing)
+--                . (cWorld . projectiles . ix pjid . prjUpdates .~ [PJRetireRemote itid 30 pjid])
+--    pjid = _prjID thepj
+
+remoteShellCollisionCheck :: Proj -> World -> World
+remoteShellCollisionCheck pj w
     | time > 340 =
         if circOnSomeWall oldPos 4 w
             then doExplode
@@ -43,36 +63,12 @@ updateRemoteShell pj w
     | otherwise = doExplode
   where
     time = _prjTimer pj
-    doExplode =
-        w
-            & usePayload (_prjPayload pj) oldPos
-            & stopSoundFrom (ShellSound i)
-            & cWorld . projectiles %~ IM.delete i
+    doExplode = explodeRemoteRocket (fromJust (_prjMITID pj)) (_prjID pj) w
     i = _prjID pj
     oldPos = _prjPos pj
     vel = _prjVel pj
     newPos = oldPos +.+ vel
 
-explodeRemoteRocket' ::
-    -- | Item id
-    Maybe Int ->
-    Proj ->
-    World ->
-    World
-explodeRemoteRocket' mitid thepj w =
-    w
-        & cWorld . projectiles . ix pjid . prjDraw .~ DrawBlankProjectile
-        & usePayload (_prjPayload thepj) (_prjPos thepj)
-        & updateitem
-  where
-    updateitem = fromMaybe (cWorld . projectiles . at pjid .~ Nothing) $ do
-        itid <- mitid
-        itpos <- w ^? cWorld . itemLocations . ix itid
-        return $
-            (pointerToItemLocation itpos . itUse . heldUse .~ HeldDoNothing)
-                . (cWorld . projectiles . ix pjid . prjUpdates .~ [PJRetireRemote itid 30 pjid])
-    pjid = _prjID thepj
-
 updateShell :: Proj -> World -> World
 updateShell pj w
     | time > 340 =
@@ -99,6 +95,9 @@ upsProjectile pj w' = foldr (`upProjectile` pj) w' (_prjUpdates pj)
 
 upProjectile :: ProjectileUpdate -> Proj -> World -> World
 upProjectile pu pj = case pu of
+    PJRemoteShellCollisionCheck -> remoteShellCollisionCheck pj
+    PJShellCollisionCheck -> updateShell pj
+    PJDecTimMvVel -> decTimMvVel pj
     PJThrust st et
         | act st et -> doThrust' pj
         | otherwise -> id